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Ethan Siegel
Theoretical astrophysicist and science writer
Ethan Siegel is a Ph.D. astrophysicist and author of "Starts with a Bang!" He is a science communicator, who professes physics and astronomy at various colleges. He has won numerous awards for science writing since 2008 for his blog, including the award for best science blog by the Institute of Physics. His two books "Treknology: The Science of Star Trek from Tricorders to Warp Drive" and "Beyond the Galaxy: How humanity looked beyond our Milky Way and discovered the entire Universe" are available for purchase at Amazon. Follow him on Twitter @startswithabang.
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Since its observation discovery in the 1990s, dark energy has been one of science's biggest mysteries. Could black holes be the cause?
Are quantum fields real, or are they simply calculational tools? These 3 experiments show that if energy is real, so are quantum fields.
Even if a balloon flies directly overhead, attempting to shoot it down with a conventional firearm is stupid, ineffective, and dangerous.
The secret ingredient is violence, and it just might indicate that "moonmoons" aren't as uncommon as most astronomers think.
Generations ago, cosmologists asserted that the Universe might not just be the same in all directions, but at all times. But is that true?
A fascinating 90 minute podcast between Dr. Ivanna Escala and Ethan Siegel on Starts With A Bang!
From the earliest stages of the hot Big Bang (and even before) to our dark energy-dominated present, how and when did the Universe grow up?
NASA has finally chosen which flagship mission, like Hubble and JWST, will launch in ~2040. Detecting alien life is now a reachable goal.
19 years ago, the Bullet Cluster provided an empirical proof for dark matter. Even today, modified gravity still can't explain it.
In general relativity, white holes are just as mathematically plausible as black holes. Black holes are real; what about white holes?
Many people out there, including scientists, claim to have discovered a series of game-changing revolutions. Here's why we don't buy it.
The Universe certainly formed stars, at one point, for the very first time. But we haven't found them yet. Here's what everyone should know.
A history of injustice and the greatest natural location for ground-based telescopes have long been at odds. Here's how the healing begins.
Along with gravitational lensing and ALMA's incredible long-wavelength spectroscopy, JWST is reshaping our view of the early Universe.
When you bring two fingers together, you can feel them "touch" each other. But are your atoms really touching, and if so, how?
In Einstein's relativity and the Standard Model, we only have three spatial dimensions. But there could be more, and many think there are.
Capacitors, acid batteries, and other methods of storing electric charges all lose energy over time. These gravity-fed batteries won't.
Humanity's newest, most powerful space telescope is performing even better than predicted. The reason why is unprecedented.
Individual space telescopes, like Hubble and JWST, revolutionized our knowledge of the Universe. What if we had an array of them, instead?
The information we have in the Universe is finite and limited, but our curiosity and wonder is forever insatiable. And always will be.